【 Fuzhou pressure slurry manufacturer 】 Bridge pressure slurry grouting process

Today following fuzhou fuzhou under pressure slurry manufacturer zhengde building materials to get to know pressure slurry method of use: ready to bridge slurry grouting pressure, opening grouting pump, the slurry from the eduction in grouting pipe, air, water and slurry. When the discharge of slurry fluidity and fluidity of mixing tank, pressure slurry grouting can begin to bridge. The maximum pressure of bridge slurry grouting pressure should not be commonly more than 0. 6MPa。 Grouting should reach pulp out full and the other end, and shall, in accordance with the provisions of reach vent discharge and fluidity of the same slurry. After pulp out closed mouth, should maintain not less than 0. A plateau 5 mpa, the stabilized period should not be less than 5 min. For continuous beam or pressure filling pulp, internal waters - make pipes Pulp slurry from the outlet flow freely. Slurry pump again, until the outlet has a homogeneous slurry flow, 0. Under the pressure of 5 mpa keep 5 min. This process can keep the 1 - 2 times. Bridge pressure slurry grouting should be according to the pulp out of dense situation after deciding whether to fill irrigation, must make fully compacted grouting hole. Bridge pressure slurry vacuum aided grouting process: in the bridge should be done before pressure slurry grouting process of pumping air into vacuum state, make the vacuum inside the tunnel stability in - 0. 08 ~ 0. Between 1 mpa. After vacuum stability, should immediately open valve pipe grouting end, at the same time open to bridge pressure slurry continuous grouting pump. After grouting order: the first, the same pipe grouting is continuously, at one time. After final tensioning, bridge pressure slurry pipe grouting must be done as soon as possible, generally no more than 48 h. Bridge slurry grouting pressure and grouting, within 3 d beam body and the ambient temperature shall be not less than 5 ℃, maintain bridge pulp slurry pressure temperature between 5 ~ 30 ℃, otherwise measures should be taken in order to meet the requirements. Bridge pressure slurry under the condition of high temperature ( More than 35 ℃) Unfavorable construction. Prohibited in the process of construction owing to lack of fluidity extra water. Under the condition of low temperature ( More than 5 ℃) Bridge, pressure slurry used in antifreeze, can not chlorine ions and nitrite. Above is the manufacturer of fuzhou pressure slurry zhengde building materials to share bridge pressure slurry grouting process.

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